Microsoft JScript runtime error: RSClientController is undefined

January 21, 2009 · 1 min read

Running Windows Vista 64 bit, Sql Server 2008 on a remote server.  Using ASP.Net and the Report Viewer control on an asp.net page for a local report.  Was also using IIS to host the web site instead of using the web server built into Visual Studio 2008.

Searched and tried everything I could find on the net trying to fix this freaking error.  On a whim (and because I didn't know what else to do and was trying everything I could think of) changed the IIS 7.0 app pool to the classic app pool.  Angels came singing down from the sky and my report worked.

What a PITA!  Hope this post helps someone else.

This article is part of the GWB Archives. Original Author: Wes Weeks

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